Because some of alts is depending on the bitcoin price when the bitcoin price is decreasing alt price will be increase rapidly when they already saw that bitcoin price is pumped they will sold their alts to be sure that they will still earned profit. And if im going to choose which coins i will be choosing i'll always choose bitcoin.
Choice is upto yours. Even altcoins may increase in price within some years but not compare to bitcoins however you may get the profit by that if you are a long term bitcoin holder stick to bitcoin itself. Sure you will be a millionaire within 10 years, It may 10000$ worth at that time.
yes that is right that there are also good potential alt coins whose prices are also expected to increase too much in a short period of time, but still i will like to say that bitcoin is more reliable than any other alt coin therefore we can trust more on bitcoin than any other alt coin. therefore i think it is more better to invest in bitcoin rather than any other alt coin and specially when the rice of bitcoin is also expecting to increase more and more.
I prefer trading altcoin than trading Bitcoin, and I wouldn't move my altcoin balance to Bitcoin.
Because I see the price movement of altcoin is faster than price movement of Bitcoin. So by trading
altcoin we will quickly get the money. Of course it must be a great and profitable coin.
You can read your statement also like this.
Because the price movement of altcoin is so fast it means I can lose my money twice as fast as by trading bitcoins.
The part about "great" is funny but "profitable" only means you;re buying before the pump and dump it at the top.
Nothing , absolutely nothing different than what you;re supposed to do while trading bitcoin, oil, gold, shares...

.